By Retta Race on SwimSwam
2025 World Championships
July 27 – August 3, 2025 (pool swimming) Singapore, Singapore World Aquatics Championships Arena LCM (50m) Meet Central How To Watch SwimSwam Preview Index Entry Book Live Results Live Recaps Prelims: Day 1 Finals: Day 1The semi-finals of the women’s 100m butterfly featured American world record holder Gretchen Walsh and the 22-year-old didn’t disappoint, capturing the top seed in 56.07.
However, Walsh wasn’t alone, as 20-year-old Roos Vanotterdijk of Belgium touched simultaneously, also hitting a mark of 56.07 for a new national record.
Vanotterdijk opened in 26.14 and closed in 29.93 to put up the fastest time of her young career, erasing the 56.66 she logged during the heats of this event here in Singapore.
Entering this competition, however, Vanotterdijk’s national record stood at the 57.05 established at this year’s Swim Open Stockholm in April. That means in a matter of months, the ace has slashed just under a second off her best-ever 100m fly outing.
Vanotterdijk’s New Belgian Record – 56.07 Vanotterdijk’s Heats Record – 56.66 Vanotterdijk’s Old Record – 57.05 26.14 26.12 27.14 29.93 30.54 29.91Vanotterdijk now ranks as the 9th-fastest woman in history, tied with China’s Liu Zige, with the final yet to come.
Top 10 Women’s LCM 100 Butterfly Performers All-Time
Gretchen Walsh (USA) – 54.60, 2025 Sarah Sjostrom (SWE) – 55.48, 2016 Torri Huske (USA) – 55.52, 2024 Maggie MacNeil (CAN) – 55.59, 2021 Zhang Yufei (CHN) – 55.62, 2020 & Regan Smith (USA) – 55.62, 2024 – Emma McKeon (AUS) – 55.72, 2021 Dana Vollmer (USA) – 55.98, 2012 Liu Zige (CHN) – 56.07, 2009 & Roos Vanotterdijk (BEL) – 56.07, 2025 –But this trajectory is just par for the course for Vanotterdijk who trained under Fred Vergnoux when he was head of the Royal Belgian Swimming Federation before she moved under Mark Faber. Faber replaced Vergnoux in November of last year.
She owns the Belgian national records across the long course 100m free (53.62), 50m back (27.81), 100m back (58.97), 50m fly (25.63), 100m fly (56.07), 200m IM (2:09.73).
Remarkably, all of these new standards have been established in the first half of this year, with the most recent record in the 200m IM set just at last month’s U23 Championships.
Vanotterdijk carries the most entries of all swimmers at these World Championships, slated to race an incredible seven individual races.
View this post on Instagram
A post shared by Swimming Stats by SwimSwam (@swimmingstats)
Read the full story on SwimSwam: Roos Vanotterdijk Rips 56.07 100 Fly Belgian National Record
Hence then, the article about roos vanotterdijk rips 56 07 100 fly belgian national record was published today ( ) and is available on swimswam ( Middle East ) The editorial team at PressBee has edited and verified it, and it may have been modified, fully republished, or quoted. You can read and follow the updates of this news or article from its original source.
Read More Details
Finally We wish PressBee provided you with enough information of ( Roos Vanotterdijk Rips 56.07 100 Fly Belgian National Record )
Also on site :